The muscle strength required to estimate the torque necessary for opening a plastic bottle was grip strength and pinch strength of the right hand. Grip strength of the right hand (OR 1.50; 1.26-1.91, p=0.001), pinch strength of the right hand (OR 1.12; 0.88-1.29, p=0.001), and torque value (OR 1.74; 1.04-2.91, p=0.001) were identified using logistic regression as predictive factors for the opening of a plastic bottle.